Microwave-Assisted Synthesis of Hollow Microspheres with Multicomponent Nanocores for Heavy-Metal Removal and Magnetic Sensing

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境纳米材料实验室

	Microwave-Assisted Synthesis of Hollow Microspheres with Multicomponent Nanocores for Heavy-Metal Removal and Magnetic Sensing
	Bi, Lei; Luan, Xuan; Geng, Fanglan; Xu, Xiuli; Chen, Yiping; Zhang, Feng
刊名	ACS APPLIED MATERIALS & INTERFACES
	2020-10-14
卷号	12 期号:41 页码:46779-46787
关键词	template-free strategy hollow structures magnetic immunosensor cadmium ion (Cd2+) removal contaminant detection
ISSN号	1944-8244
英文摘要	The primary advantage of a hollow structure is the likelihood of introducing diverse components in a single particle to achieve multiple missions. Herein, hollow microspheres with multicomponent nanocores (HMMNs) have been prepared based on a template-free strategy via a microwave-assisted hydrothermal treatment of Chlorella. The resulting HMMNs retain the nearspherical hollow morphology and functional groups of the cell wall of Chlorella, obviating the need for templates and chemical modification. The elements (iron, cobalt, calcium, magnesium, chlorine, and phosphorus) naturally present within the Chlorella cells react to form hydroxyapatite/chlorapatite and magnetic nanocores without the need for exogenous chemical reagents. The performances of HMMNs for cadmium ion (Cd2+) removal and antibiotic detection are explored. HMMNs exhibit relatively high adsorbance of Cd2+ (1035.8 mmol/kg) and can be easily recovered by application of an external magnetic field. Ion exchange with Ca2+ and Mg2+ is shown to be the main mechanism of Cd2+ elimination. In addition, HMMNs are a suitable carrier for the construction of a magnetic immunosensor, as demonstrated by the successful development of such an immunosensor with acceptable analytical performance for the detection of neomycin in milk samples. The versatile applications of HMMNs result from their multicomponent nanocores, hollow structure, and the functional groups on their shell. This work not only offers a simple and eco-friendly strategy for the fabrication of novel HMMNs but also provides a valuable advanced material for contaminant detection and heavy-metal removal.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44879]
专题	生态环境研究中心_环境纳米材料实验室
推荐引用方式 GB/T 7714	Bi, Lei,Luan, Xuan,Geng, Fanglan,et al. Microwave-Assisted Synthesis of Hollow Microspheres with Multicomponent Nanocores for Heavy-Metal Removal and Magnetic Sensing[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(41):46779-46787.
APA	Bi, Lei,Luan, Xuan,Geng, Fanglan,Xu, Xiuli,Chen, Yiping,&Zhang, Feng.(2020).Microwave-Assisted Synthesis of Hollow Microspheres with Multicomponent Nanocores for Heavy-Metal Removal and Magnetic Sensing.ACS APPLIED MATERIALS & INTERFACES,12(41),46779-46787.
MLA	Bi, Lei,et al."Microwave-Assisted Synthesis of Hollow Microspheres with Multicomponent Nanocores for Heavy-Metal Removal and Magnetic Sensing".ACS APPLIED MATERIALS & INTERFACES 12.41(2020):46779-46787.